I suppose I should point out that this was an unusual year in that I took a 3-month leave in the middle of it, so the organized system of monthly orders fell apart when I came back to 4 months' worth of review journals to go through. So I blame any discrepancies on that. It's convenient I think. Please note that I dropped tracking the graphic novels category midway through the year and decided just to include them in the YA or J Fiction categories as appropriate.
Actual Numbers Ahead!
I also wonder if I should adjust the average book prices down. I've been basing them off retail price but not accounting for the fact that we don't pay retail, and are somewhere between wholesale and retail prices. My only concern with dropping each book cost a few dollars is that I don't want to overspend. So this is where I ask my audience: How do you account for discount prices when budgeting? Or when putting in your monthly order? Our vendor doesn't tell us how big the discount is on a certain book until we've received it and are billed, but I know other vendors disclose upfront.
And SURPRISE! Here's what I had left in my budget as of 10/25/12: